The Computer-Control-System of the Heidelberg Postaccelerator

The 3MV section of the Heidelberg postaccelerator is operated under full computer control. A PDP 11/34 equipped with a JY 411-CAMAC interface services the operator's console via a parallel branch as well as the accelerator components via an extended serial highway. All parameters are controlled from the console by use of touchpanels and digital knobs. The basic software consists of a core resident data base and three control tasks which are functionally completely equivalent to a conventional console. Numerous other tasks are running under the operating system RSX11M for more complex operations and special control processes.